MESON Chess Problem Database

Problem Display
PID: 232969 (7Q/8/4K1k1/7p/7p/8/6P1/6R1 w - - 0 1)

Kozhakin, Vladimir Vladimirovich

Kudesnik, 1999

7Q/8/4K1k1/7p/7p/8/6P1/6R1

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...h3
      • 2.gxh3#
  • Tries
    • 1.Rf1?
      • 1...Kg5
        • 2.Qg7#
      • 1...h3!
    • 1.g3?
      • threat
        • 2.gxh4#
      • 1...Kg5
        • 2.Qg7#
      • 1...hxg3
        • 2.Rxg3#
      • 1...h3!
  • Keys
    • 1.g4!
      • threat
        • 2.gxh5#
      • 1...Kg5
        • 2.Qf6#
      • 1...hxg4
        • 2.Rxg4#
      • 1...hxg4 ep
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(a);OGATE::R(A)+P(B),XP(a)
  • Tries
    • Try
      • R(A);
      • Vars
        • K(c);P-FLIGHT::QAR2(D)
      • Refutation
        • P(a);
    • Try
      • P(B);
      • Threat
        • R(A)+P(B),XP(a)
      • Vars
        • K(c);P-FLIGHT::QAR2(D)
        • P(a);OGATE,P_SPINP(a),XP(B)::R(A),XP(a)
      • Refutation
        • P(a);
  • Actual
    • P(B);
    • Threat
      • R(A)+P(B)DCHECK,XP(b)
    • Vars
      • K(c);P-FLIGHT::QAB1(D)
      • P(b);OGATE,P_SPINP(b),XP(B)::R(A),XP(b)
      • P(a);EP,OGATEB,P_SPINP(a),XP(B)::R(A),XP(a)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).